Evidence of God

There are many things in science (such as gravity) we accept sight unseen -- if there is measurable and demonstrable evidence for their existence.

The evidence for God is not measurable nor demonstrable (by any agreed-upon method). To some, that means the evidence does not exist, so by extension, God does not exist.

For those who have heard God's "voice in my head" or experienced some other "Godly" event, the lack of measurable and demonstrable evidence for there being a God is no longer the only consideration. The experienced event becomes evidence -- of something -- for that person.

It may turn out to be evidence of a brain tumor, someone slipping LSD into their sugar, or of a God. Some causes can be converted from subjective to objective (like a brain tumor). Some will forever have to remain subjective (like my 1968 LSD trip -- or God).